Arm-rest.



H. LJROOTH.

ARM REST. APLICATION FILED DEC. I4, 1914.

2 SHEETSSHEET l- Patented June 13, 1916.

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H. L. ROOTH.

ARM REST.

APPLICATION FILED DEC. 14, 1914.

I 1 1 87, 1 00. Patented June 13, 1916.

2 SHEETS-SHEET 2..

HANS L. BOOTH, OF BLACK HAWK, SOUTH DAKOTA.

ABM-REST.

Specification of Letters Patent.

Application filed December 14, 1914. Serial No. 877,157.

To all whom it may concern Be it known that I, HANS L. Roorrr, a citizenof the United States of America, residing at Black Hawk, in the countyof Meade and State of South Dakota have invented certain new and usefulImprovements in Arm-Rests, of which the following is a specification.

This invention relates to improvements in arm rests or supports for theuse of riflemen or others requiring a steady arm in the exercise oftheir vocation.

The object is to provide an improved arm rest or support designed forconvenient attachment to the users body and that will not interfere withthe free movement of the users arm.

With the foregoing and other objects in view the invention consists inthe combination and arrangement of parts to be hereinafter fullydescribed in the following specification, pointed out in the claims andillustrated in the accompanying drawings which form a part of saidspecification and in which Figure 1 is a perspectiveview of oneembodiment of my improved arm rest. Fig. 2 is a side view of the same.Fig. 3 is a side view of the inner face of one of the adjusting disksand a portion of the arm channel. Fig. 4: is a vertical sectional viewthrough the adjusting disks. Fig. 5 is a side elevation of one adjustingdisk with the connecting rivet and locking pawl removed. Fig. 6 is aperspective view of the locking pawl. Fig. 7 is a perspective view ofthe modification of the arm rest. Fig. 8 is a front view of the samefolded. Fig. 9 is a side view of Fig. 8.

Like reference characters indicate corresponding parts throughout theseveral views.

Referring to the first six figures of the drawings, the referencenumeral 1 designates a post, adapted to be secured to the body by straps2, and which terminates at its upper end in a circular disk or rack 3provided with teeth 4 formed upon one face.

The rack 3 is pivotally carried upon the rivet 5 which connects it tothe adjusting disk 6 formed with a square opening 8 through which theshank 9, square in cross section, of locking pawl 10 is removablydisposed; said pawl being provided with a spring 11 which serves to keepits working end-in engagement with the teeth of the rack 3. Theadjusting disk 8 is made integral with the arm channel 12 longitudinallyof which the arm of the user may rest.

The arm channel is adjustable in a vertical plane and to adjust the samethe locking pawl is drawn away from the adjusting disk 6 until the shank9 leaves the square open portion 8; the pawl is now turned half wayaround or until the beveled end of the same will travel freely over theteeth 4 of the rack 3, the rack and adjusting disk may now be adjustedwith relation to each other and the pawl then turned back to originalposition with the beveled point at right angles to the teeth a: and therest will be locked in adjusted position.

Referring to Figs. 7, 8 and 9 the post 1 is secured to the body in thesame manner as post 1 and it terminates at one end in ears 13 throughwhich the pivot 14. passes that carries the bar 16 upon which the usersarm may freely rest. The bar 16 is connected to the post 1 by the hingedlink 15 which, when extended, will retain said bar and post in extendedposition.

What is claimed is 1. An arm rest comprising a post adapt ed to bestrapped to the body of the user, an adjusting disk terminally carriedby said post, a circular rack, pivotal connection between said rack andadjusting disk, means connecting said adjusting disk and circular rackfor releasably locking them in adjusted position with relation to eachother and an arm channel carried by said circular rack.

2. An arm rest comprising a post adapted to be strapped to the body ofthe user, an integral adjusting disk for said post, said disk beingformed with a square opening in its face, a rack pivotally connected tosaid adjusting disk and having its teeth arranged in a circle thecircumference of which is in the plane of the square opening in saidadjusting disk, and a spring-pressed locking pawl carried by saidadjusting disk and having its square shank normally disposed in thesquare opening in said disk.

In testimony that I claim the foregoing as my own I have hereto afiiXedmy signature in the presence of two subscribing witnesses.

HANS L. BOOTH.

Witnesses ZACHARIAH HOLMES, WM. TURNER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, I). 0.

Patented June 13, 1916.

